Surgical baker



W. S. EDMANDS May 1, 1928.

SURGICAL BAKER Filed March 1926 2 Sheets-Sheet l W 5" YM Q i -EL EJ ATTDRNEys May 1, 1928.

W. S. EDMANDS SURGICAL BAKER 2 Sheets-Sheet 2 Filed March 8. 1926 7 INVENTEI TT RN y- Patented May 1, 1928.

UNITED STATES PATENT OFFICE.

WALTER S. EDMANDS, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO EDWARD T.

' EDMANDS, 0F NEWTON, MASSACHUSETTS.

SURGICAL BAKER.

Application filed. March 8, 1926.

The invention relates to a new and useful improvement in surgical bakers. It relates especially to that type of surgical baker which is constructed in such form as to straddle the body or other portion of the person of the patient which it is desired to subject to the treatment. It is common to form the frame of metal segments which support the heating members, the said heating members being preferably electric lamps or other form of electric heating devices. The metal frame usually becomes quite hot and if it is allowed to come in contact with the patient, he is liable to be severely burned. One object of the invention is to provide a heat insulating attachment for that portion of the frame most likely to come in contact with the patient and one feature of the invention relates to a heat insulating member and to the means by which said insulating member is attached to the frame.

Another object of the invention is to provide a guard to prevent the patient from coming in direct contact with the lamp or other heating member and one feature relates to the construct-ion and arrangement of such a guard.

It is common to make the frame in a plurality of sections pivotally connected together so that the frame may be adjusted to varying degrees of spread according to the size of the body or limb which is to be treated.

The invention is shown and described as embodied in a device of the adjustable type just mentioned, although it is to be understood that the invention is not limited to the particular type shown. I

The invention will be fully understood from the following description when taken in connection with the accompanying draw ings, and the novel features thereof will be pointed out and clearly defined in the claims at the close of this specification.

In the drawings:

Fig. 1 is a front elevation of a device embodying the invention.

Fig. 2 is a section on line 22 of Fig. 1.

Fig. 3 is a front elevation partly broken away showing the position of the slidable guide for the loose portions of the insulating binder when the free ends of the seg ment members of the frame are spread wider apart than shown in Fig. 1,

Serial No. 93,129.

t is a front elevation showing the position of the slidable guide when the free ends of the segment members are brought closer together. i

Fig. 5 is a fragmentary view of a portion of the insulating binding material in its flattened form before it is attached to the frame.

Fig. 6 is a fragmentary view showing the binder bent into Ushape for attachment to the edge of the frame.

Fig. 7 shows a modified form of insulating binder.

'leferring to the drawings:

The supporting frame for the reflector, lighting and heating apparatus consists of two segmental end members 1, 2 at each end of the apparatus which are pivotally connected together at their upper overlapping ends by a pivot as shown at Suitable means are provided by which when they have been adjusted to the desired degree of spread they may be clamped to hold them in the adjusted position. As shown in the drawings, one end of the pivot is provided with a head and the other end is screw threaded and provided with a wing nut l which may be set up to clamp the two members 1, 2 together. Each segmental end member 1, .2 is connected with the opposite corresponding end member 1, 2 by tie members 5. Each pair of the pivotally connected members of the frame supports a curved reflector member 6. he lighting and heating elements are shown as consisting of electric lamps 7 fitted into sockets 8 attached to the segmental end members 1, 2 suitably wired up and provided with switch connections in well known manner. It is not deemed necessary to show the wiring. The parts thus far described are all substantially shown in my former Patent No. 1,492,595, May a, 1924..

The portions of the frame which are most likely to come in contact with the patient are the edges of the inner periphery and the lower ends of the segment members 1, 2. I therefore provide the said edges with a binding 9 of heat insulating material. This binding preferably consists of asbestos and in the preferred form it is woven in a flat tened tubular form as shown in Fig. 5 and a core consisting of a thin strip 10 of flexihle metal is inserted therein, the said strip being of copper or other suitable metal of a character that may be bent'into U-shape in cross section as shown in Fig. 6 and which will retain its bent form. The binding strip with the enclosed metal core is pinched or clamped onto the edge of the segment members, lapping over on to the inner and outer faces of the outer segment members as shown in Figs. 1 and 2. In order to more firmly secure the binding to the segment members clamps 11 are provided whichare secured by bolts 12. The same bolts may be utilized to secure the tie members 5 to the segment members.

The two segment members 1, 2 of each pair are pivotally connected together at their overlapping ends as previously described. The binding is preferably continuous for the two pivotally connected segment members 1, 2. In order to allow for the varying relative positions as the segment members are adjusted to different degrees of spread, the binding should be left free from attachment to the segments for a short distance adjacent the pivotally connected ends as shown in the drawings. The binding should be of sufficient length to accommodate in a wide spread portion shown in Fig. 3. VJ hen the segments are brought toward each other as shown in Fig. 1 and Fig. 4, the surplus binding will form a loop. Ifit were left entirely free it would fall down in a long sin le loop which would extend down far enough to be troublesome. In order to prevent this result I provide a slidable clip 13 whose lower end is secured. to the metal of the free portion of the binding as shown in the drawings,said clip being formed with an elongated slot 14 through which passes the hinge pivot 3 of the segment members. As the said segment members are moved away from each other the said slide moves to allow the binding to straighten'out as in Fig. and when they are moved toward each other the'slide will move down a short dis tance and the binding will form a double loop 15, 15, but the limit of the slot prevents it from moving far enough to form a long single loop.

In order to prevent the lamps from. contact with the patient without shutting off the desired heat I provide a plurality of guards 16 in front of the lamps secured at their opposite ends to the respective end segments 1, l and 2, 2. These guards are noncondnctors of heat and are spaced apart from each other so as'to allow he heated air to pass between them to the patient.

Preferably these "guards consist of'metal bars covered with asbestos, the bars being turned up and clinched against the outer edge of the heat resisting strip 19. Itmay be attached to the ed es of the segment mem- D p 1 as a bers of the frame in the same manner ready described.

\Vhat I claim is:

1. A surgical baker of the character described having the edges of the frame proximate the patient provided with a binding consisting of flexible heat resisting material having a flexible non-resilient corecf metal. 2. A device of the character described having a frame comprising a plurality of segmental members hin ed together'to form the side portions of the. frame, the inner peripheries of the segmental members having a binding consisting of flexible heat resistin material secured thereto and extending from each segment to its adjacent pivotally connected segment, the intermediate. portion of the binding which is adjacent the pivot ends of said segments being loose from the edge of the frame, a slidableclip connected at oneend with the pivot and at the other end with the looseportion of the binding to support the loose portion of the binding during the varying degreesof spread of the said pivotally'connected members with relation to each other. 7

3. A surgical baherhaving a frame with end members which support the heating elements and protective guard members of heat resisting material extending transversely between thesaid end members in front of the heating elementsto prevent contact of the heating'elements with the patient. j V

4. A surgical baker having a frame comprising a plurality of segmental members hinged together to form the side portions of the frame, the inner peripheries of the segof a flexible heat resisting material secured thereto and extending from each segment'to its adjacent pi voliaily connected segment. the intermediate portion of the l'iinding which joins the two segments being loose fromthe edge of the frame. 7

In testimony whereof Iaflix my signature.

WA TER s nMANDs.

mental members having a binding consisting 

